Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e6c3304a7fffad4…

MALICIOUS

PDF

44.3 KB Created: 2020-08-17 15:27:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 36c00a18eb92544e01df396226b15f3e SHA-1: 82f9274de9f58bb7b12325e31fc76309d6fd2e0e SHA-256: 8e6c3304a7fffad40f26e8299d890a9e6d6f06398282f2a56d10d10886f25a14
220 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1566 Phishing

The PDF contains multiple embedded URLs, with a primary link to 'https://ttraff.cc/pify?keyword=install+burp+certificate+android+6', which is flagged as a malicious redirector. The document body and heuristics indicate a social engineering lure to install a certificate or browser extension, a common tactic for credential theft or malware delivery. The presence of a large number of external PDF links suggests a link farm for SEO poisoning or traffic redirection.

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.cc/pify?keyword=install+burp+certificate+android+6
    • http://vazidomax.sasolmc.org/uploads/1/3/2/6/132682156/guvonomezexaze.pdf
    • http://files.purplecarrotmarket.coop/uploads/1/3/1/1/131163634/8415019.pdf
    • http://files.dougmcdade.com/uploads/1/3/1/3/131382092/7755553.pdf
    • https://cdn.shopify.com/s/files/1/0428/3714/7811/files/vusaxulelajep.pdf
    • https://cdn.shopify.com/s/files/1/0434/6481/8838/files/rixomojimuzes.pdf
    • https://cdn.shopify.com/s/files/1/0433/1493/8014/files/a_level_maths_edexcel.pdf
    • https://cdn.shopify.com/s/files/1/0432/5684/0350/files/buxelopezexojifax.pdf
    • https://cdn.shopify.com/s/files/1/0429/0890/9734/files/8219409930.pdf
    • https://cdn.shopify.com/s/files/1/0432/4327/4402/files/rains_of_castamere_instrumental.pdf
    • https://cdn.shopify.com/s/files/1/0431/9058/3464/files/zesivupasulujunazev.pdf
    • https://cdn.shopify.com/s/files/1/0439/0758/0072/files/chogada_tara_full_song_mp4_free.pdf
    • https://cdn.shopify.com/s/files/1/0437/8768/1954/files/juxumejudol.pdf
    • https://cdn.shopify.com/s/files/1/0440/8901/6472/files/manual_de_ejercicios_para_abdomen.pdf
    • https://cdn.shopify.com/s/files/1/0432/3137/9618/files/wixeba.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000667d.bin
092eb194d96cf2cc69d7a8a32a8c10ad141108d21e1ed3b0aba5fcd0d11d3aa4
pdf-font-stream PDF embedded font (sfnt) at offset 0x667D 5380 bytes
font_01_sfnt_off000078b9.bin
daa5cdfdc9be04ea5682a04e97f55cde5304ce81fc8170d9428317bccb9d9ced
pdf-font-stream PDF embedded font (sfnt) at offset 0x78B9 13696 bytes